Table 4.
Parameter | Inter-method intraclass correlation coefficient | ||
---|---|---|---|
s-apparent diffusion coefficient (ADC)b50 vs. z-ADC | s-ADCb1000 vs. z-ADC | s-ADCb1500 vs. z-ADC | |
Reader 1 | |||
Peripheral zone (n = 10) | 0.87 (0.76–0.98) | 0.99 (0.99–1.00) | 0.99 (0.94–1.00) |
Transitional zone (n = 10) | 0.78 (0.58–0.98) | 0.98 (0.87–1.00) | 0.95 (0.73–0.99) |
Benign lesion (n = 50) | 0.86 (0.74–0.99) | 0.98 (0.94–1.00) | 0.98 (0.95–0.99) |
Malignant lesion (n = 50) | 0.89 (0.76–0.95) | 0.90 (0.88–0.98) | 0.88 (0.74–0.95) |
Reader 2 | |||
Peripheral zone (n = 10) | 0.81 (0.61–0.99) | 0.99 (0.97–1.00) | 0.98 (0.88–1.00) |
Transitional zone (n = 10) | 0.78 (0.58–0.98) | 0.99 (0.93–1.00) | 0.97 (0.76–1.00) |
Benign lesion (n = 50) | 0.86 (0.73–0.99) | 0.98 (0.95–0.99) | 0.97 (0.93–0.99) |
Malignant lesion (n = 50) | 0.82 (0.70–0.94) | 0.88 (0.72–0.95) | 0.88 (0.72–0.95) |
z-ADC, ADC map derived from zoomed field-of view (FOV) diffusion-weighted imaging and all the available b-values (b = 50, 1,000, and 1,500 s/mm2); s-ADCb50, ADC map synthesized using our proposed deep learning framework with input from full FOV diffusion-weighted imaging (f-DWI) (b = 50 s/mm2); s-ADCb1000, ADC map synthesized using our proposed deep learning framework with input from f-DWI (b = 1,000 s/mm2); s-ADCb1500, ADC map synthesized using our proposed deep learning framework with input from f-DWI (b = 1500 s/mm2).